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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
12444550 BONAPARTE CREEK AT TONASKET, WA
LOCATION - Lat 48°42'05", long 119°26'30" referenced to North American Datum of 1927, in NE 1/4 SW 1/4 sec.16, T.37 N., R.27 E., Okanogan County, WA, Hydrologic Unit 17020006, at Hwy 97 crossing, at Tonasket, and 0.3 mi upstream from mouth.
DRAINAGE AREA - 161 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 1912, September 1970, August 1973, March to August 1977, August 1979, October 2001, June and September 2008, April 2010(discharge measurements only). March 1, 2016 to current year
GAGE - Water-stage recorder. Datum of gage is 916.38 ft above NAVD of 1988 (USGS GNSS survey, July 13, 2022) and is 920 feet above NGVD 1929 (from topographic map).
REMARKS - No known regulation. Diversions upstream of station for irrigation. U.S Geological Survey satellite telemeter at station.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 138 ft³/s, May 17, 2017 gage height, 2.95 ft; minimum discharge 0.11 ft³/s August 16-18, 29, 2016, July 28, August 8, 2019.
